Shoemaking method and means therefor



Aug. 27, 1935. cc o 2,012,913

SHOEMAKI NG METHOD AND MEANS THEREFOR Filed Feb. 17, 1934 2 Sheets-Sheet 1 INVENTOR ATTO N EYS Aug. 27, 1935. R F. MACCARONE 2,012,913

- SIIOEMAKING METHOD AND MEANS THEREFOR Filed Feb. 17, 1954 2 Sheets-Sheet 2 INVENTORJ" l'zgdflacazrone ATTO NEYS Patented Aug; 27, 1935 VSHOEMAKING METHOD AND MEANS THEREFOR Fred Maccarone, Brooklyn, N. 1., assignor to Del- Mac Shoe Process Corporation, New York, N. Y.

Application February 17, 1934, Serial No. 711,673 a v 14 Claims. (01.12-146) My invention relates to shoe making anda principal object of myinvention is to provide an improved method of producing insole and outsole combinations from a single thickness of material, which method will be simple and; inexpensive and will insure that the insole and outsole members of the shoe are properly formed and sized in relation to each other.

- A further principal object of my invention is to provide means for implementing. my improved method, said means comprising an improvement in a conventional sole rounding, machine by means of which the insole and o'utsole members of a shoe are simultaneously rounded.

Other and further objects will appear from the followingspecification. I

The subject method is an improve ent upon methods heretofore taught by me in y copending applications Serial Numbers 6 1,109 and 703,237 filed May 15, 1933 and December 20, 1933, respectively.

Referring to the drawings:

- Figure 1 is a partial view in elevation of a conventional automatic sole rounding machine to which my invention has been applied.

Figure 2 is a fragmental plan view on a larger scale, taken on line 2-2 of Figure 1.

Figure '3 is a plan view of a rounded sole in which an insole has been defined and initially formed by incisions cut in the rounding operation.

, Figure 4 is a sectional view taken on line i of Figure 3. c

Figure 5 is a plan view of the rounded insole member after it has been split from the sole shown in Figure 3, and v Figure 6 is a plan view of the rounded complementary outsole member which also results from the splitting operation.' I

||l indicates the turntable of a standard sole rounding machine on which is mounted a knife carriage assembly comprising an arm pivoted on the turntable at I2, and a cross arm |3 on which a knife block holder I4 is detachably and pivotally mounted. A knife block I5 is mounted on the holder l4 and carries a rounding knife IS. The knife carriage is forced horizontally in the direction of the pattern clamps |1-|| etc., by a spring housed in casing I8 which operates thru a gear l9 meshing with a segment 20 formed on the free end of arm I l. I

The knife block is formedto ride against the edge of a pattern or template 2| and the block holder is pressed by a wire spring 22 so that it will pivot to hold the knife in such relation to the pattern that its cutting edge will conform to the pattern inrouhding the outsole.

All the'parts, as above described, are well known in machines of this type, which machines also comprise means for retracting and restraining 5 the carriage spring,as indicated at 23, a cam construction (not shown) which supplements the carriage spring in guiding the carriage in approximate conformity with the rounding pattern, etc. Only such features of the conventional machine have. been illustrated as are necessary to an understanding of my invention by one skilled in this art'.

In carrying out my invention, I provide the cross arm l3 with a boss 30 which is drilled and threadedto receive a pivot bolt 3|. Adjacent the boss 30, I provide the cross arm with an upstanding flange 32 which is drilled and tapped to re- .ceive a pin 33. Pivoted on the bolt 3| I provide alever arm 35, formed as shown, which extends above and beyond the arm l3 and carries an inverted knife block holder I4 and knife block I5. Extending from arm 35 adjacentits fulcrum is a flange 36 recessed to receive one end of a compression spring 31, the other end of which surrounds pin 33 and abuts the flange 32, thus exerting a pressure which operates to hold knife block l5 in engagement with pattern 2|. A wire spring 22, similar to spring 22, forms apart ofthis knife block assembly and serves a similar function in guiding the incising or gouging knife 40 in relation to the pattern 2|.

i To simultaneously round an outsole and complementary insole from a single thickness of material in v.the machine, the material is clamped between the lower pattern 2|, contoured to define an outsole, and the upper pattern 2|; contoured to define an insole. The knife 40 is positioned to extend below the pattern 2| 2. distance corresponding to the thickness of the insole desired and the turntable I0 is revolved a full revolution to carry the knife carriage around the An outsole is thus rounded from the material by knife 16 and, simultaneously, an insole 5| integral with the outsole work in the usual manner.

is rounded by the knife 40.

lines in Figure 4, to provide the complementary j insole and outsole members 50 and 5|, respec tively, as will be readily understood. f

It will be noted that the arm 35, together with parts l4, l5 and 22, comprises a second or augmentative knife carriage pivoted on the main knife carriage of the machine, and that the second carriage is independently pressed by spring 31 into yielding engagement with the insole pattern.

In my previous disclosures above referred to, the incisions defining the insole member were preferably formed by blades carried by one of the patterns. Although practical in use, this involved a substantial cost in special pattern equipment which is obviated by the improvement herein set forth.

Having thus described my invention, I claim:

1. In shoe making, the method of producing an outsole and a complementary insole from a single thickness of material which consists in first rounding the material to define an outsole and simultaneously progressively forming incisions therein to define an insole, and then splitting the rounded material within the depth of said incisions.

2. In shoe making, the method of producing an outsole and a complementary insole from a single thickness of material which consists in first rounding the material to define an outsole and simultaneously in the same operation progressively forming incisions therein to define and initially form an insole, said incisions extending to a depth corresponding to the thickness of the insole desired, and then splitting the rounded material within the depth of said incisions.

3. In shoe making, the method of producing an outsole and a complementary insole which consists in first clamping a single thickness of sole material between two patterns, one of said patterns having its edges contoured to define an outsole and the other pattern having its edges contoured to define an insole; then rounding the full thickness of material to conform to said outsole pattern and, simultaneously and in the same operation, progressively forming incisions in one side of the material in conformity with said insole pattern; then removing the material from between the patterns; and then splitting the material within the depth of said incisions.

4. In a sole rounding machine, clamps adapted to receive two patterns and a sheet of sole material, a turntable revolvable about said clamps, a main knife carriage pivoted on said turntable, a second knife carriage pivoted on said main carriage, and resilient means urging each of said carriages in independent riding engagement with the respective patterns.

5. In a sole rounding machine, clamps adapted to receive two patterns and a sheet of sole material, a turntable revolvable about said clamps, a main knife carriage pivoted on said turntable, a second knife carriage pivoted on said main carriage, resilient means urging said main carriage in riding engagement with one of the patterns, and independent resilient means urging said second carriage in ridingengagement with the other pattern, each of said carriages being adapted to carry a knife adjacent its pattern riding surface.

6. In a sole rounding machine, clamps adapted to receive two patterns and a sheet of sole material, a turntable revolvable about said clamps, a main knife carriage pivoted on said turntable, resilient means urging said carriage in riding engagement with one of said patterns, a second knife carriage pivoted on said carriage, and resilient means interposed between said carriages for urging said second carriage in riding engagement with the other pattern, a rounding knife carried by said main carriage adjacent the pattern riding portion thereof, and an incising knife carried by said second carriage adjacent the pattern riding portion thereof.

7. An attachment for a sole rounding machine having clamps adapted to receive two patterns and a sheet of sole material, a turntable revolvable about said clamps, a knife carriage pivoted on said turntable, and resilient means urging said carriage in riding engagement with one of the patterns; said attachment comprising an augmentative knife carriage pivoted on said carriage and resilient means interposed between said carriages whereby the augmentative carriage is urged in riding engagement with the other pattern.

8. In a machine for forming sole-pieces, opposed patterns relatively movable to clamp a sole-piece between them, and a cutter co-operating with each pattern, the cutters and patterns being relatively movable to carry the points of operation of the cutters about the patterns.

9. In combination, a stationary pattern, a pattern movable toward and from the stationary pattern to clamp a workpiece between them, a movable knife-carrying member guided by one pattern, and a second knife-carrying member movable upon the other member and guided by the other pattern.

10. In combination, a stationary pattern, a pattern movable toward and from the stationary pattern to clamp a workpiece between them, a rotatable support, an arm pivoted upon the support and guided by one pattern, and a knife-carrier movable upon the arm and being guided by the other pattern.

11. In the method of making an insole and an outsole from a common blank, the step which consists in rounding a sole blank and simultaneously gouging one face thereof to outline the insole portion of the blank to a depth equal to the thickness of the desired insole.

12. In the method of making an insole and an outsole from a common blank, the step which consists in rounding a sole blank to cut a sole therefrom and simultaneously forming in one face of the sole a cut extending parallel to and spaced from the edge of the sole and of a depth less than the thickness of the sole.

13. The method of making insole and outsole combinations from a sole blank, which consists in rounding the blank and simultaneously gouging one face thereof to outline the insole portion to a depth substantially equal to the thickness of the desired insole, and thereafter splitting the thus rounded and gouged blank to remove the insole portion thereof.

14. The method of making insole and outsole combinations from a sole blank, which consists in rounding the blank and simultaneously gouging one face thereof to outline the insole portion to a depth substantially equal to the thickness of the FRED MACCARONE. 

